harry reid spoke about the tragedy. >> marines all over the world are focusing on the loss of their fellow marines. they are grieving this loss. details are emerging. we don't really know. the area's been blocked off. >> the nevada facility stores ammunition. the desert terrain is said to be similar to that of afghanistan. the official said it was not immediately clear whether the mortar exploded prematurely inside the firing tube or whether more than a single round exploded. we heard that it was kite a substantial explosion. we understand that marine corps official not authorized to speak on camera but giving that reporter that information. so more developing news. we'll continue to find out more about what happened and report it to you as soon as we can. pam cook, ktvu channel 2 news. >>> a car fire about 4:00 this morning, almost spread to the oakland raiders' headquarters in alameda. firefighters rushed to this fire at harbor bay parkway and found the car engulfed in flames in a parking lot in the back of the property, which is behind the oakland airport. the building was not burned. f